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[ia64] teach elf_access_reg() to handle the missing range (r16..r31) 

Now it's easy to make elf_access_gpreg() handle the rest of global
registers (r16..r31).  That gets rid of the hole in the registers
elf_access_reg() can handle, which will allow to simplify its callers
later in the series.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2020-06-06 17:55:02 -04:00
parent 4c35bf3ae9
commit e2115cf3cc
1 changed files with 4 additions and 2 deletions
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6
arch/ia64/kernel/ptrace.c
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@ -1273,12 +1273,14 @@ struct regset_getset {
int ret;
};
static const ptrdiff_t pt_offsets[16] =
static const ptrdiff_t pt_offsets[32] =
{
#define R(n) offsetof(struct pt_regs, r##n)
[0] = -1, R(1), R(2), R(3),
[4] = -1, [5] = -1, [6] = -1, [7] = -1,
R(8), R(9), R(10), R(11), R(12), R(13), R(14), R(15),
R(16), R(17), R(18), R(19), R(20), R(21), R(22), R(23),
R(24), R(25), R(26), R(27), R(28), R(29), R(30), R(31),
#undef R
};
@ -1479,7 +1481,7 @@ static int
access_elf_reg(struct task_struct *target, struct unw_frame_info *info,
unsigned long addr, unsigned long *data, int write_access)
{
if (addr >= ELF_GR_OFFSET(1) && addr <= ELF_GR_OFFSET(15))
if (addr >= ELF_GR_OFFSET(1) && addr <= ELF_GR_OFFSET(31))
return access_elf_gpreg(target, info, addr, data, write_access);
else if (addr >= ELF_BR_OFFSET(0) && addr <= ELF_BR_OFFSET(7))
return access_elf_breg(target, info, addr, data, write_access);